Disgraced actor Bill Cosby tweets bizarre message from jail in honour of US Father's Day

The former The Cosby Show star is currently serving three to 10 years in a Pennsylvania prison after being convicted for drugging and sexually assaulting Andrea Constand at his home in 2004, but that hasn't stopped him from curating a tweet to coincide with US Father's Day.

Cosby arrives for sentencing at his sexual assault trial last September. (Getty)

"Hey, Hey, Hey...It's America's Dad...I know it's late, but to all of the Dads... It's an honor to be called a Father, so let's make today a renewed oath to fulfilling our purpose — strengthening our families and communities," read a message from the 81-year-old actor's Twitter and Instagram accounts yesterday.

The tweet was accompanied with a grainy video of Cosby discussing slavery and racism.

Before more than 50 women stepped forward accusing the actor of sexual assault, Cosby was of course the darling of television. He starred on the famous sitcom between 1984 and 1992, playing the lovable Dr Cliff Huxtable who was often called "America's Dad", as Cosby pointed out in his tweet.

After Cosby's tweet was seen as inappropriate by social media users, his spokesman, Andrew Wyatt, told The New York Times that Cosby had requested his Father's Day message be sent from his accounts to show his support for a prison group called Man Up.

"When I visited with Mr Cosby on Thursday, he was overviewing his Father's Day message that he was excited to give to a support group in the institution called Man Up," Wyatt said. "Mr Cosby spoke to these men who have been incarcerated for many years, but are up for parole soon, about removing the 'dis' from 'disadvantage' and focusing on the advantage.

"That advantage is to be better fathers, to be productive citizens and to remember Never Again, which means, Never Again should you enter this gates to this plantation, because this is the new form of slavery," Wyatt explained.